fluorine
nounUS /ˈflʊ(ə)ɹˌin
Etymology From Latin fluor (“flow”) + -ine. Coined by British chemist Humphry Davy in 1813.
1
The chemical element (symbol F) with an atomic number of 9. It is the lightest of the halogens, a pale yellow-green, highly reactive gas that attacks all metals.
2
Chemistry, Natural sciences, Physical sciences An atom of this element.
- an octahedron of fluorines
- Synonyms
- phthor
- Derived terms
- difluorine, flox, Flox, fluo-, fluor-, fluoro-, fluorian, fluoride, fluorinate, fluorination, fluorine-18, fluorine-19, fluorine absorption dating, fluorine dating, fluorinelike, fluorine method, fluorine oxide, fluorine test, nonfluorine, organofluorine, radiofluorine